Vapor generator assembly



Nov. 28, 1950 c, A, MlLLER 2,532,179

VAPOR GENERATOR ASSEMBLY Filed Dec. 8, 1947 IN VEN TOR.

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Patented Nov. 28, 1950 YAPUR GENERATOR AS SEMBLY Charles A. Miller,Evansville, Ind., assignor to Servel, Inc., New York, N. Y., acorporation of Delaware Application December 8, 1947, Serial No. 790,366

Claims.

My invention relates to heat operated refrigeration systems andparticularly to the generator assembly of such systems.

An object of my invention is to provide an improved construction andarrangement of elements in the generator assembly of a heat operatedrefrigerating system.

The invention together with its objects and advantages will be moreclearly understood from the following description and accompanyingdrawing, wherein:

Fig. l is a top plan view, partly in section, of a generator assemblyincorporating my invention.

Fig. 2 is a top plan view of a part of the assembly showing a preferredform of my invention.

A generator ID, of the horizontal type, is provided with alongitudinally extending inner flue it running therethrough. A fluidfuel burner (not shown) is mounted adjacent the inlet end ii of the fluell so as to direct its flame into the flue. The outlet end l3 of theflue communicates with a horizontal portion of a chimney it which isprovided for the disposal of products of combustion. Closely fittedwithin the flue, adjacent its outlet end 13, is a flue baflie l5 whichacts to inhibit the flow of the products of combustion whereby the heatexchange is made more thorough. A retainer wire it having an offsetportion I? and a threaded end i8 is pivotally connected at one of itsends it to an end of the flue baflie [5. A cleanout cap 20 is providedto close off the cleanout end 2| of the chimney l4 during operation ofthe apparatus. The working media inlet and outlet connections to thegenerator, not being a part of this invention, have been omitted fromthe drawing.

When the apparatus is mounted within a refrigerator cabinet (not shown)the generator is positioned in a lower part of the cabinet so as to bein a horizontal plane within the lower front of the cabinet causing thechimney to lie parallel to a side wall of the cabinet in a horizontalplane with its cleanout end 2| directed towards the front of thecabinet. With the apparatus mounted in this manner the chimney and theflue may be cleaned from the front of the cabinet.

In assembling the flue bafile, retainer wire and cleanout cap in theirrespective places, the end it of the retainer wire is inserted through ahole in one end of the flue baflie and then bent back upon itself so asto form a linked connection between the retainer wire and the fluebaflle. Any other type of movable joint would be suitable. The retainerwire-flue bafiie assembly i then inserted, retainer wire first, into theinlet end [2 of the flue. For reasons to be later explained, care mustbe taken to be sure that the ofiset portion ll of the retainer wire isdirected towards the rear of the cabinet when the retain-er wirefluebafiie assembly is inserted into the flue. The retainer wire-flue baffleassembly is then pushed into the flue to the outlet end thereof. Whenthe threaded end I8 of the retainer wire abuts against the inner surfaceof the chimney, the retainer wire will pivot about its point of junctionwith the flue bafile and turn into the front end of the chimney. Theoflset portion ll of the retainer wire acts as a bumper against a rearportion 22 of the generator flue chimney junction and nestles down overa front portion 23 of the generator flue chimney junction thus forcingthe retainer wire to turn into the front end of the chimney.

The cleanout cap 20, provided with a hole to receive the threaded end [8of the retainer wire which projects out of the front end of the chimney,is now slipped onto the threaded end of the retainer wire and a wing nut24 is screwed onto the threaded end of the retainer wire forcing thecleanout cap against the end of the chimney so that the cleanout opening2| is completely covered. In this manner, as shown in Fig. 1, both theflue bafile and cleanout cap are secured in their respective positionsby the threaded engagement of the nut 24 to the retainer wire. Theburner (not shown) is now mounted in place at the inlet end of thegenerator flue and the apparatus is ready for operation.

When it is desired to clean the generator flue and chimney, the burner,cleanout cap and flue baffle retainer wire assembly are removed. Theburner is first removed, then nut 24 is removed from the retainer wire,whereby the cleanout cap 20 will drop 01f the front end of the chimneyand the flue baffle-retainer wire assembly may easily be pulled out theinlet end I2 of the generator flue. The retainer wire will negotiate theflue chimney junction in the same manner as previously explained. Thechimney and generator flue may then be cleaned from the front of thecabinet. In reassembling the apparatus it is necessary that the fluebaflie be replaced in its proper position, otherwise the cleanout capfor the chimney cannot be attached to the retainer wire. In this mannerit is assured that the flue bafiie is properly positioned within thegenerator flue.

While I have shown only one embodiment of my invention, I realize thatmany modifications may be made by anyone skilled in the art and Itherefore desire to be limited only by the extent of the followingclaims.

What is claimed is:

1. A generator assembly for supplying heat to a heat operatedrefrigeration system comprising a. flue, a chimney connected to theflue, a flue baffle within the flue, a cleanout cap for closing off oneend of the chimney, and a retainer wire attached at one of its ends tothe flue baifie and at the other of its ends to the cleanout cap securely holding the flue bafile and the cleanout cap in their respectivepositions. I

2. Heat transfer apparatus as described in claim 1 wherein the retainerwire has an offset portion intermediate its ends.

3. A generator assembly for supplying heat to a heat operatedrefrigeration system comprising a flue, a chimney at one end of the flueand having an open end, a cleanout cap for closing the open end of saidchimney, and a flue bafile within the flue having means attached to oneend thereof adapted to removably secure the cleanout cap over the openend of the chimney.

4. A generator assembly for supplying heat to a heat operatedrefrigeration system comprising a generator, a flue passingtherethroug'h, means in said flue for inhibiting the flow of products ofcombustion therethrough, a chimney adjacent one end of said flue, saidchimney being provided with an open end, means for closing the open endof said chimney, and a single connecting means for removably securingboth of the aforementioned flow inhibiting and chimney closing means intheir respective positions in the assembly.

5. A generator assembly for a heat operated refrigeration systemcomprising a flue, a chimney having an angular junction with said flueand an opening adjacent the juncture but out of line with the flue, aremovable baffle in the flue, and a retainer link pivotally connected atone end to said baffle and having an offset portion for directing thelink around the corner at said juncture and toward the opening in thechimney, and means c0-operating with the other end of the link at saidopening to hold the bafile in operative position in the flue.

CHARLES A. LEILLER.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 117,642 Kellogg 11 Aug. 1, 1871128,376 Eckstein et a1 -1 June 25, 1872 425,057 Van Vorce Apr. 8, 1880598,129 Woods Feb. 1, 1898 1,349,571 Hubbard 11 Aug. 17, 1920 1,528,252House 1 Mar. 3, 1925 2,404,530 Resek as--. July 23, 1946 FOREIGN PATENTSN umber Country Date 472,014 Great Britain Sept. 15-, 1937 869,521France Nov. 7, 1941

